cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A309028 Smallest k>0 such that the elliptic curve y^2 = x^3 + k*x has rank n, if k exists.

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%I A309028 #21 Jul 16 2019 02:51:22
%S A309028 1,3,14,323,1918,195843
%N A309028 Smallest k>0 such that the elliptic curve y^2 = x^3 + k*x has rank n, if k exists.
%C A309028 See A309029 for the smallest negative k.
%H A309028 B. J. Birch and H. P. F. Swinnerton-Dyer, <a href="https://eudml.org/doc/150565">Notes on elliptic curves, I</a>, J. Reine Angew. Math., 212 (1963), 7-25.
%Y A309028 Cf. A031507, A060953, A194687, A309029.
%Y A309028 Cf. A002158, A002159, A076329, A309030, A309031, A309190.
%K A309028 nonn,more,hard
%O A309028 0,2
%A A309028 _Seiichi Manyama_, Jul 08 2019
%E A309028 a(5) from _Vaclav Kotesovec_, Jul 14 2019